Characters Validation in Name field using C-sharp Language

The following program is to validate name field. There is a methods which is user defined named as checkEntry which is taking string as an argument. In this method a loop is used which is starting from 0 to string length. Code is pretty simple and anyone can understand it very easily. You will some useless variable and class in this code. You do not need to create another class and user defined method. This can be done in main method. Copy code from user defined method and paste it in main method and handle this in a loop as per requirement i have used 'while' loop here.